Using 2 Monitors Problem

hey, I decided to hook up another monitor using a VGA cable, but my video card only supports one monitor, and the computer doesn't show the integrated video card on the motherboard.

***I want to hook it up in a way, so one monitor runs through the video card, and the other through the integrated video card on my motherboard.

I tried playing with the BIOS settings concerning switching between the two video cards, but it only shows one of them at a time, and I cant get both of them to work at once. When I go to display properties -> settings tab, it doesn't allow me to switch between any monitors since it only recognizes one of them (depending which one I have it set to in the BIOS).

As already said, it doesn't work. The reason? AGP is an Accelerated Graphics Port and you can use only one AGP device at a time. Your integrated video is AGP and so is your vid card, so you can only use one or the other.